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3 years ago

Which of the following is the sum of 1/2 and -2/3

Mathematics

1 answer:

Lilit [14]3 years ago

4 0

Answer:

- 1/6

Step-by-step explanation:

find the common denominators 3/6 - 4/6 = - 1/6

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What is the time elaspsed between 11:00 and 2:15

hichkok12 [17]

From 11 am to 2:15 pm it is 3 hrs and 15 min

4 0

3 years ago

Read 2 more answers

A wise man once said, "500 reduced by 4 times my age is 160." What is his age?

babymother [125]

Answer:

165 years old

Step-by-step explanation:

For now let his age be = x

According to the question,

4x - 500 = 160

4x = 160 + 500

4x = 660

x = 660 / 4

x = 165 years old

(He is tooooo wise)

Hope it helps!

Mark it as Brainliest

3 0

3 years ago

(1 point) Consider the function f(x)=2x3−9x2−60x+1 on the interval [−4,9]. Find the average or mean slope of the function on thi

OlgaM077 [116]

Answer: c = 4.97 and c = -1.97

Step-by-step explanation: Mean Value Theorem states if a function f(x) is continuous on interval [a,b] and differentiable on (a,b), there is at least one value c in the interval (a<c<b) such that:

$f'(c) = \frac{f(b)-f(a)}{b-a}$

So, for the function f(x) = $2x^{3}-9x^{2}-60x+1$ on interval [-4,9]

$f'(x) = 6x^{2}-18x-60$

f(-4) = $2.(-4)^{3}-9.(-4)^{2}-60.(-4)+1$

f(-4) = 113

f(9) = $2.(9)^{3}-9.(9)^{2}-60.(9)+1$

f(9) = 100

Calculating average:

$6c^{2}-18c-60 = \frac{100-113}{9-(-4)}$

$6c^{2}-18c-60 = -1$

$6c^{2}-18c-59 = 0$

Resolving through Bhaskara:

c = $\frac{18+\sqrt{1740} }{12}$

c = $\frac{18+41.71 }{12}$ = 4.97

c = $\frac{18-41.71 }{12}$ = -1.97

Both values of c exist inside the interval [-4,9], so both values are mean slope: c = 4.97 and c = -1.97

7 0

3 years ago

Solve. 4(a + 2) = 14 – 2(3 – 2a)

kykrilka [37]

Answer:

C. All Real Numbers

Step-by-step explanation:

If you take any variable and do the math with that variable on both sides of the equation the answer is always balanced. So, the answer is C.

4 0

3 years ago

200 students in a high school senior class are surveyed about what majors they intend to declare in college. Of the 200 students

dedylja [7]

Answer:

P(M) = 0.4

Explanation:

1. Build a two-way frequency table:

To have a complete understanding of the scenary build a two-way frequency table.

Column and rows:

Major in math No major in math Total

Major in CS

No major in CS

Total

200 students: